<nav>
    <ul class="flex-box">
    	<li><a href="/" <if condition="CONTROLLER_NAME == 'Index' && ACTION_NAME == 'index'"> class="active"</if>>首页</a></li>
    	<li><a href="{:C('NAVIGATION_LINK_JBH')}">家博会</a></li>
        <li><a href="{:U('Shop/sale')}" <if condition="CONTROLLER_NAME == 'Shop' && in_array(ACTION_NAME,array('sale','goods')) "> class="active"</if>>天天特卖</a></li>
        <li><a href="{:C('NAVIGATION_LINK_BBS')}">装修学堂</a></li>
    </ul>
</nav>